Q: What are the prime factors of the number 551,828,376?

 A: 2, 3, 11, 77417

Why are those the prime factors of the number 551,828,376?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 551,828,376

551,828,376
Factor Arrows
2275,914,188
Factor Arrows
2137,957,094
Factor Arrows
268,978,547
Factor Arrows
322,992,849
Factor Arrows
37,664,283
Factor Arrows
32,554,761
Factor Arrows
3851,587
Factor Arrows
1177,417

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 11, 77417

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 11 x 77,417 = 551,828,376

This can also be written as 23 x 34 x 111 x 77,4171 = 551,828,376

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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